lamiaceae Loc: San Luis Obispo County, CA

For B&W as others have noted

for 35mm & 120:

Ilford FP4 ISO 125
Ilford HP5 ISO 400
Kodak Tri-X ISO 400 (better at 320)
Kodak T-Max ISO 400 (used it, don't like it)
Kodak T-Max ISO 100 (used it, don't like it)
my favorite was Kodak Plus-X ISO 125 but it has been discontinued

In the past I've also used the Professional versions of many of those as 120 and 4x5" films. They are slightly different.

I process B&W film myself at home.

For Color Prints:

I have not shot Color Negative film in ages, so I have no idea what is out there either. When I did shoot Color Negatives I got the best results with
Kodak Vericolor II & III film (the stuff is a bitch though, it must be kept refrigerated and then processed immediately.)
Kodak Kodacolor was only fair in my estimation.
Never really liked Ektachrome (too cool in colors). I liked Kodachrome and Agfachrome Slide Films (I know you did not ask about slide films).

No idea where to get it processed these days.

AzPicLady Loc: Behind the camera!

I use Kodak Ektar or Portra for prints. I like the 100 ISO, but the 400 works pretty well, too. The Ektar scans nicely. For slides, as said above, Fuji Velvia and for B&W, Ilford.A lot of people use Kodak's B&W that develops in colour soup (could run them through normal colour machines), but I've never liked it much.

WayneT Loc: Paris, TN

Good suggestions here, not shooting film myself again (yet). Welcome to the forum.

Bear2 Loc: Southeast,, MI

They developed the last roll of Kodachrome.

Duane

TriX Loc: Raleigh, NC

Yep, the K-14 Kodachrome developing process is gone. It was always painful, and the last developers and chemicals are no more. Ektachrome (E-6) Processing is available both commercially and as kits for home developing, but I don't think we'll see Kodachrome again (in spite of Paul Simon's plea).

Bobspez Loc: Southern NJ, USA

Fuji Velvia 50 for color. You can buy the film and get a prepaid mailer for processing from B and H online.

speters Loc: Grangeville/Idaho

Just check out B&H or Adorama and such and you'll find that almost all film is still available, they most likely carry what you used to shoot with!

ORpilot Loc: Prineville, Or

I highly recommend Freestyle Photo out of Holywood CA. The have the largest supply of B&W and color film of anyone. They are the only place to get chemicals such as Rodinol to do B&W film. They have been around more than 50yrs. Not just 35mm but all the way up to and including sheet film. They keep my students and darkroom happy.

amfoto1 Loc: San Jose, Calif. USA

Color film... I mostly shot slides. Favorite was Fuji Velvia 50. Fujichrome Provia 100 is pretty nice, too. I've heard some rumor of Kodak bringing back Ektachrome, too... but don't know the details. I liked E100 VS "very saturated" and E200, when it was available.

For ISO 400 or occasionally even 800 I'd sometimes use Fuji Superia color neg film (I didn't care for any of the higher ISO slide films). Kodak Portra 160 and 400 were pretty good too.

Black & white... My favorite silver halide film (for traditional darkroom enlargements) is Fuji Neopan Acros 100. It's gorgeous stuff! Check to be sure about getting it processed, unless you plan to do it yourself. For higher ISO work I used Kodak Tri-X and Ilford HP-5, both rated at ISO 400, processing them myself. They both push to ISO 800 pretty well, too.

If you want to scan the film and work with the images digitally, for color either slides or negatives can work (slides can be easier in some respects). For black & white a chromogenic, C41 processed film scans a lot better than silver halide films. Ilford XP2 (ISO 400) is one I've used a lot. It can be processed locally by any 1-hour lab (assuming you can find one).

The best way to work digitally with silver halide B&W images is to first make a good, big print from them the "old school" way in a darkroom, then scan that with a high quality flat bed.

burkphoto Loc: High Point, NC

The Internet is your friend:

http://imaging.kodakalaris.com/professional-photographers/professional-films (Kodak Alaris)

http://www.ilfordphoto.com/products/producttype.asp?n=3&t=Black+%26+White+Films (Ilford division of Harman)

http://www.adox.de/Photo/adox-films-2/ (Adox films)

http://www.fujifilmusa.com/products/professional_photography/film/neopan_black_white/100_acros/ (Fujifilm Neopan 100 Acros)

http://www.fujifilm.com/products/films/index.html (Fujifilm color films)

https://www.bhphotovideo.com/c/browse/Film/ci/9954/N/4294548525 (This is B&H Photo Video's film catalog)

http://www.fomausa.com/index.php?p=p (Foma Films)

I'm sure there are others. See Freestyle, too: http://www.freestylephoto.biz/category/1-Film

There are lots of films made by one company, re-branded, sold by another.

My all time favorites that are still made are Ilford HP5+, Delta 400, and XP2 (Ilford); Kodak Portra 160, Portra 400, TMax 400; Fuji Velvia 50, Velvia 100, and Neopan 100 Acros.

There are all kinds of crazy films out there. There are all kinds of crazy digital film simulations, many of which are built into cameras or available as plug-ins for Photoshop and Lightroom.

https://thenextweb.com/apps/2015/07/03/9-retro-style-plug-ins-for-photoshop-lightroom-and-more-give-your-photos-that-vintage-film-look/

rdgreenwood Loc: Kennett Square, Pennsylvania

I haven't seen anyone mention Kodak Ektapress. It comes in a number of speeds, delivers fine grain, stands up to radical temperature shifts, and delivers excellent color. In my film days, shooting with a Nikon N90S, it was all I used for my personal (landscape and travel) and commercial (equine and magazine) photography.

Leitz Loc: Solms

Is Ektapress still available?

rdgreenwood Loc: Kennett Square, Pennsylvania

As far as I can tell, it is.

rdgreenwood Loc: Kennett Square, Pennsylvania

Oh my goodness! After posting that I thought Kodak still made Ektapress, I decided to check and went out in search of some. NOTHING! The Kodak site doesn't even have a list of films. I then checked Amazon and B&H, again no Ektapress. I apologize.